[LAB 06 · 颜色干预：视图、投影与读出](/course/notebooks/7c4f531113d7473abc174e2e014e1340.html)

# 热身：一种可行构造，尚未学习 · 实现代码
[独立阅读](/course/notebook-blocks/8786227a02484ba7af94410dd4963867.html)
主线阅读与优先实验

真实RGB对比训练、唯一指定增强变化、h/z形状与颜色读出
展开完整实现代码
```
import os, tempfile
LAB_WORKDIR = tempfile.mkdtemp(prefix='lecture03-')
os.chdir(LAB_WORKDIR)
print('Ephemeral experiment workspace ready')
import numpy as np
h=np.array([[1.,0.],[.7,0.],[0.,1.],[0.,.7]])
y=np.array([0,0,1,1]);z=h.sum(1,keepdims=True)
print('h shape',h.shape,'z shape',z.shape)
print('h color readout',np.argmax(h,1).tolist(),'z',z.ravel().tolist())
print('This is a hand-constructed projection, not learned features.')
```